From the collection Dr. David P. Chandler on the site http://papaintellivision.com/
The documents herein regard the Mattel Electronics Intellivision project ranging from its inception in 1977 until the end of Chandler's involvement with the company in 1983.
The instruction manual for the Sprinter 40 addon for the Intellivision with a back date of December 20th, 1980. The operations of the 40-column printer are explained within.
Uploaded by The History of How We Play on